Não informado. (1950). Adult Education. American Association for Adult & Continuing Education.
Citação do estilo Chicago (17ª ed.)Não informado. Adult Education. Chapel Hill, NC: American Association for Adult & Continuing Education, 1950.
Citação MLA (8ª ed.)Não informado. Adult Education. American Association for Adult & Continuing Education, 1950.
警告：这些引文格式不一定是100％准确.